What does the Baxi 600 Series E310 fault code mean?
The E310 fault code on the Baxi 600 Series indicates a domestic hot water (DHW) electrical fault. This typically suggests an issue with the electrical components responsible for heating the water, which may affect the boiler’s ability to provide hot water.
Common Causes
- Faulty DHW Sensor: A malfunctioning sensor can lead to incorrect readings, causing the boiler to fail in heating water properly.
- Electrical Connection Issues: Loose or damaged wiring connections can disrupt the electrical flow necessary for the DHW system to function correctly.
Can I fix it myself? (DIY)
It is strongly advised to call a qualified Gas Safe Engineer for any electrical issues related to the boiler. Attempting to fix electrical faults without proper training can be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the E310 fault could range around £150 to £250, depending on whether the issue is with the DHW sensor or wiring. This estimate includes parts and labour for a qualified engineer to diagnose and rectify the fault.